Novak Djokovic has revealed his plans for after he retires from tennis, with the Serb's currently focused on winning a 25th Grand Slam title at the US Open. The 38-year-old has offered his clearest hint yet that his life in the sport will not end once he puts the racquet down.

Djokovic will resume his pursuit for a 25th Grand Slam title at Flushing Meadows in the opening-round against Learner Tien.

Djokovic, 38, beat Tien, 6-1, 7-6, 6-2 to improve to 19-0 in US Open first-round matches, tying Roger Federer for first all-time. But he labored with low energy, a nasty blister on his right big toe and Tien’s level, especially in the second set.